Home / 469.36-647.46-381.88

Finding the Fourth Proportional to 469.36, 647.46 and 381.88

Calculator

Solution

The fourth proportional to 469.36, 647.46 and 381.88 is: 526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.36 : 647.46 = 381.88 : x
  2. Step 2: Convert to fraction form
    469.36/647.46 = 381.88/x
  3. Step 3: Cross multiply
    469.36x = 647.46 × 381.88
  4. Step 4: Simplify right side
    469.36x = 247,252.02
  5. Step 5: Solve for x
    x = 247,252.02/469.36
  6. Step 6: Final answer
    x = 526.79

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.